Chapter 21, Problem 4STP

Interpretation Introduction

Interpretation: The correct option for the carbohydrates which form table sugar needs to be determined.

Concept Introduction:

Carbohydrate- Carbohydrates are the naturally occurring organic compound. It consists of carbon, hydrogen, and oxygen. There are aldehyde, ketone, and polyhydroxy groups present. The carbonyl group is present in aldehyde, ketone, and alcohol group present as a polyhydroxy group.

Answer to Problem 4STP

Correct answer: Option (B) glucose and fructose.

Explanation of Solution

Reason for correct option:

A disaccharide is a simple carbohydrate consisting of two sugar unit in their structures. Simple disaccharides are hexoses sugar. Glucose and fructose both of these monosaccharides are representing hexoses sugar structure with six carbons. They are connect with each other and form a disaccharide, sucrose. The common name for the sucrose is table suagr.

Conclusion

Reasons for incorrect options:

Option (A) ribose and glucose are not component of sucrose. Hence it is incorrect for the table sugar.

Option (C) fructose and ribose is connected but sucrose is not formed. So it is incorrect option.

Option (D) glucose and galactose are not the correct for table sugar, hence it is incorrect option.